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Device, system and method for detecting air impermeability of oil casing screw thread

A technology of air tightness detection and detection device, which is applied in the direction of measuring device, fluid tightness test, liquid tightness measurement using liquid/vacuum degree, etc. It can solve the problems of increasing the difficulty of processing and manufacturing, and achieve simple and fast detection operation , light weight, stable and reliable effect

Active Publication Date: 2017-05-10
SOUTHWEST PETROLEUM UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Since the currently used air tightness detection devices are all built-in, the outer diameter of the air tightness detection device needs to be reduced accordingly to match the pipe diameter of the oil casing. If the air tightness detection device is small in size It is still necessary to maintain the original structure and realize the original functions, which will greatly increase the difficulty of processing and manufacturing.

Method used

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  • Device, system and method for detecting air impermeability of oil casing screw thread

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] Such as Figure 1 to Figure 8As shown in the figure, an airtightness detection device for oil and casing threads and threads comprises a main clamp body 2, a left fan-shaped clamp body 4 which is rotationally and sealingly connected with one side of the main clamp body 2, and is rotationally sealed with the other side of the main clamp body 1. The connected right fan-shaped folder body 3, the left fan-shaped folder body 4 and the right fan-shaped folder body 3 are fixedly connected by a sn...

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Abstract

The invention discloses a device for detecting the air impermeability of an oil casing screw thread and a detecting method thereof. The device comprises a main clamping body, a left fan-shaped clamping body in rotatable and sealed connection to a side of the main clamping body, and a right fan-shaped clamping body in rotatable and sealed connection to the other side of the main clamping body. The left fan-shaped clamping body and the left fan-shaped clamping body are fixedly connected through a buckle switch. The inner wall of the detecting device is provided with a sealing elastic layer, and a gap between the left fan-shaped clamping body and the left fan-shaped clamping body is in sealed contact by means of a sealing adhesive tape. The main clamping body is provided with an air impermeability detecting device and a hydraulic clamping device for clamping the left fan-shaped clamping body and the left fan-shaped clamping body so that the inner wall of the detecting device and an oil casing are clamped. The detecting device and the detecting method are simple in operation and light in structure, solve the air impermeability detection of the oil casings with different sizes, and can be suspended from an oil derrick for easy field operation and remote control.

Description

technical field [0001] The invention relates to the technical field of an airtightness detection device for a threaded thread of an oil-casing connection part, in particular to a quick-assembled and disassembled air-tightness detection device, a detection system and a detection method for a threaded thread of an oil-casing pipe. Background technique [0002] my country's oil weather market is vast, and underground gas storage on oil fields has been widely used. Oil and natural gas are stored in underground gas storage, which has large reserves, a large overall pressure adjustment range, and low cost. However, compared with conventional production capacity construction The production well has higher requirements on the safety, integrity and air tightness of the wellbore, and the entire injection-production well runs for a long time. Due to the high pressure of the gas storage and the wide range of pressure changes in the operation of the injection-production well of the gas st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/28
CPCG01M3/2815
Inventor 王国荣胡刚戴海龙姚玖江赵雨佳左润东邓亚平严红林唐通袁光杰董胜伟夏焱金根泰
Owner SOUTHWEST PETROLEUM UNIV
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